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- W1976410460 abstract "Carbon-11 was used as a tracer to study the various physical and chemical parameters involved in the synthesis of 2-[11C]-5,5-diphenylhydantoin (DPH) starting from high specific activity [11C]urea. To optimize the reaction conditions, the effects of reaction time, temperature as well as various reactant concentrations were studied. High performance liquid chromatography (HPLC) and thin layer chromatography (TLC) were used to determine the reactants and products and to monitor progress of the reactions. The [11C]DPH was isolated within 55–60 min from end of bombardment (EOB) by preparative HPLC in an overall 30–35% yield with a radiochemical purity of 98.2 ± 0.5% and a specific activity as high as 3.2 ± 0.3 Ci/μmol (EOB)." @default.
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- W1976410460 date "1986-01-01" @default.
- W1976410460 modified "2023-10-12" @default.
- W1976410460 title "Use of 11C as a tracer for studying the synthesis of radiolabelled compounds—II: 2-[11C]-5,5-diphenylhydantoin from [11C]cyanide" @default.
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- W1976410460 doi "https://doi.org/10.1016/0883-2889(86)90043-2" @default.
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